/*
 * Copyright 2002-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.http.client.support;

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpRequest;
import org.springframework.util.Assert;

import java.net.URI;

/**
 * Provides a convenient implementation of the {@link HttpRequest} interface that can be overridden to adapt the
 * request. Methods default to calling through to the wrapped request object.
 *
 * @author Arjen Poutsma
 * @since 3.1
 */
public class HttpRequestWrapper implements HttpRequest {

    private final HttpRequest request;


    /**
     * Creates a new {@code HttpRequest} wrapping the given request object.
     *
     * @param request the request object to be wrapped
     */
    public HttpRequestWrapper(HttpRequest request) {
        Assert.notNull(request, "'request' must not be null");
        this.request = request;
    }

    /**
     * Returns the wrapped request.
     */
    public HttpRequest getRequest() {
        return request;
    }

    /**
     * Returns the method of the wrapped request.
     */
    public HttpMethod getMethod() {
        return this.request.getMethod();
    }

    /**
     * Returns the URI of the wrapped request.
     */
    public URI getURI() {
        return this.request.getURI();
    }

    /**
     * Returns the headers of the wrapped request.
     */
    public HttpHeaders getHeaders() {
        return this.request.getHeaders();
    }

}
